VDB-307964 · CVE-2025-45514 · EUVD-2025-13927

Tenda FH451 1.0.0.9 frmL7ImForm stack-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Tenda FH451 1.0.0.9. It has been declared as critical. This affects the function frmL7ImForm. Such manipulation leads to stack-based overflow. This vulnerability is traded as CVE-2025-45514. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Tenda FH451 1.0.0.9. Affected by this issue is the function frmL7ImForm. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. CVE summarizes:

Tenda FH451 V1.0.0.9 has a stack overflow vulnerability in the function.frmL7ImForm.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-45514 since 04/22/2025. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/13/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-13927). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Tenda

Name

FH451

Version

1.0.0.9

License

commercial

Website

Vendor: https://www.tenda.com.cn/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.5

VulDB Base Score: 8.8
VulDB Temp Score: 8.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/22/2025 CVE reserved
05/07/2025 +15 days Advisory disclosed
05/07/2025 +0 days VulDB entry created
05/13/2025 +6 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2025-45514 (🔒)
GCVE (CVE): GCVE-0-2025-45514
GCVE (VulDB): GCVE-100-307964
EUVD: 🔒

Entryinfo

Created: 05/07/2025 21:45
Updated: 05/13/2025 04:31
Changes: 05/07/2025 21:45 (54), 05/13/2025 04:31 (1)
Complete: 🔍
Cache ID: 216::103